A Framework for Pixel Intensity Modulation Based Image Steganography

Secured data transmission is one of the real issues faced in the world of Web. As the measure of data on Web is expanding daily, the importance of data security is also increasing. Several techniques like cryptography, watermarking, steganography are used to enhance the data to be transmitted. This paper uses a novel steganographic algorithm in the spatial domain using the concept of pixel modulation which diminishes the changes that occur in the stego image generated from the cover image. Experimental results and analysis of the observations show the effectiveness of the proposed algorithm. Different metrics like mean square error (MSE), peak to signal ratio (PSNR), bit-plane analysis, and histogram analysis have been used to show the better results of the proposed algorithm over the existing ones.